BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



603 



Hippothoa hyalina (Linnaeus). [Chart 40.] 



Verrill and Smith, 1873, p. 713, 405, etc. (Mollia 

 hyalina); Osburn, 1912, p. 235. 



Buzzards Bay and Vineyard Sound, abundant. 

 Verrill. Taken by the Survey in various parts 

 of Vineyard Sound; less frequently in Buz- 

 zards Bay and mainly at inshore stations; 

 abundant at Devils Bridge. Dredged in i to 

 17 fathoms, on every sort of bottom, occurring 

 for the most part on algae, but occasionally on 

 hydroids, Bryozoa, shells, etc. Recorded, also, 

 for Crab Ledge; Nantucket, in harbor, and at 

 south shore ; Great Round Shoal fishing ground, 

 8 fathoms (very abundant on stems of hy- 

 droids); likewise from various shores, and 

 wharves in the region, and from the Nantucket 

 cable ; abundant on floating weed in Vineyard 

 Sound. 



Fish Hawk stations: 7560, 7562 (on Chondrus 

 crispus), 7581 (on alga), 7582 (on Chondrus 

 crispus), 7587, 7613, 7659, 7685, 7721, 7724, 

 7727, 7771. Supplementary stations (1906): 

 7723; (1907): 7526, 7581, 7783; (1909): 7627, 

 7671. 



Phalarope and Blue Wing stations: 20, 24, 30, 44, 

 45, 46, 47, 51, 56, 57, 63, 64, 67, 83, 91, in, 

 163 (few). Supplementary station (1909): 83. 



Hippothoa divaricata Lamouroux. 

 Osburn, 1912, p. 235. 



Vineyard Sound, near both ends, at Fish Hawk 

 stations 7526 and 7723 (1906 repetition); like- 

 wise at Crab Ledge in 18 fathoms. In all of 

 these cases only small colonies of a few cells 

 were noted. 



Cellepora americana Osburn. [Chart 44.] 



Verrill and Smith, 1873, p. 714, 312, etc. (Cel- 

 leporaramulosa);Qs,bwrn, 1912, p. 238(sp.nov.). 



Buzzards Bay and Vineyard Sound. Verrill. 

 Abundant throughout the Sound , scarce in the 

 Bay; dredged in i to 19 fathoms, on very vari- 

 ous bottoms, commonly attached to hydroids, 

 algae, or Bugula. Survey. Also in drift on 



Cellepora americana Continued. 

 Fish Hawk stations: 75231?), 7532 (many on 

 Eudendrium), 7533 bis, 7534, 7538 bis, 7540 

 (few small masses on stems of Eudendrium), 

 7547 bis, 7550, 7557 (abundant on Eudendrium), 

 7559, 7560 (on Bugula turrita), 7562 (abun- 

 dant), 7564 bis, 7570, 7572 (on Eudendrium and 

 Pennaria), 7574, 7576, 7579 (abundant), 7581, 

 7591 (abundant on Bugula), 7594 (very abun- 

 dant*), 7595 (many), 7598, 7616, 7618, 7656, 7660, 

 7679, 7680, 7681, 7682, 7689, 7693, 7699, 7700, 

 7701, 7704, 7706, 7707, 7709, 7718, 7719, 7724, 



7725. 773' 773L 7732. 7733. 7734, 7739, 774L 

 7742, 7744, 77S3(?), 7768, 7769, 7774, 7775, 

 7781. Supplementary stations (1906): 7537, 



7567, 77 2 3, 7745: (1907): 7526, 7538, 7549. 

 7551, 7581, 7731, 7739, 7775, 7780; (1909): 

 7618, 7638, 7643, 7659, 7660, 7668, 7670, 7671, 

 7672. 



Phalarope and Blue Wing stations: 5, 6, 7 few 

 pieces)?, 8, 46, 51, 113, 160. 



Cellepora canaliculata Busk. 

 Osburn, 1912, p. 239. 



Crab Ledge, August 12, 1909, one large branched 

 colony, and two of the ordinary pisiform type. 



Family ESCHARID^;. 



Lepralia americana Verrill. a 

 Verrill and Smith, 



1873, p. 



, 



420 (? Lepralia 



pallasiana); Verrill, 1875, P- 4 X 5> P^ 

 fig. 4; Davenport, 1891, p. 47 (Lepralia pallas- 

 iana); Osburn, 1912, p. 241. 

 Unequivocal records for this species as follows: 

 Western end of Vineyard Sound, at Fish Hawk 

 station 7719; Buzzards Bay at 1909 repetitions 

 of Fish Hawk stations 7657, 7668, 7671, 7672, 

 and of Phalarope station 165; Woods Hole 

 Harbor, on piles; Nantucket Harbor, on piles; 

 Muskeget Channel, 7 fathoms; Great Round 

 Shoal fishing ground, 8 fathoms; Crab Ledge. 

 (For other possible records see below.) 



Lepralia pallasiana (Moll).& 



Leidy, 1855, p. 9, fig. 23 (Esckarina pediostoma . 

 Osburn, 1912, p. 240. 



the shores of No Mans Land and Nantucket. 



a This species and the following were undoubtedly confused by Verrill, probably in the Vineyard Sound report, and cer- 

 tainly in his later papers, in which he refers only to L. americana after his description of that species. In the 1875 paper, for 

 example, figure 4 can be identified with certainty as L. americana; but figure 5 of the same plate, which is without doubt 

 L. pallasiana Moll, is referred to as representing "the same without ootheca" as figure 4. The present authors followed Verrill in 

 their earlier records for this report, and the two species were thus confused. Hence, unfortunately, it is impossible to present 

 the distribution of these forms separately. The resulting combined records are given below. A few unequivocal records for each 

 species are likewise presented, however. 



& Concerning the confusion of this with the preceding species, see above. Leidy undoubtedly figured this species, recording 

 it from Beesleys Point, N. J. Dr. Osburn has found it in the drift on the north shore of Cape Cod; likewise in Vineyard Sound, 

 where it is not uncommon, ranging from the low-water mark to the deepest parts. 



